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Localhost SMTP Access

Discussion in 'E-mail Discussion' started by trparky, Apr 4, 2005.

  1. trparky

    trparky Well-Known Member

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    It appears that some scripts get around the tracking that Exim provides with the X-Abuse headers. The way it seems that they are getting around it is by connecting to port 25 directly.

    How do we track this abuse?
     
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  2. chirpy

    chirpy Well-Known Member

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    Well, you can stop it by enabling the WHM > Tweak Security > SMTP Tweak option. Users should be using the binary anyway (e.g. /usr/sbin/sendmail)
     
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  3. trparky

    trparky Well-Known Member

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    But if I enable that, mail errors occur, specifically an "Unroutable" error message. This tweak is useless if nobody can send email to outside servers.

    I have talked about this before, it seems to me this is another one of CPanel's halfass attempts to fix something, but breaks everything in the process.
     
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  4. chirpy

    chirpy Well-Known Member

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    They can send mail to outside servers, they just have to use the MUA to send it as I mentioned, i.e. /usr/sbin/sendmail instead of directly through port 25 which they should not be doing from a server integrity POV. The solution is just fine, but you have to implement it in full to use it.
     
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  5. trparky

    trparky Well-Known Member

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    Display all headersFrom: Mail Delivery System <Mailer-Daemon@server>
    To: address@domain.com.com
    Subject: Mail delivery failed: returning message to sender
    Date: Wed, 06 Apr 2005 11:42:26 -0500

    This message was created automatically by mail delivery software.

    A message that you sent could not be delivered to one or more of its
    recipients. This is a permanent error. The following address(es) failed:

    address@yahoo.com
    unrouteable mail domain "yahoo.com"

    ------------------------

    For some reason, Horde is unable to send mail. SQMail works, but Horde doesn't.
     
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